OLSAT Practice Pack — Grade 4

Answer Key — OLSAT Grade 4

1. 1. D — A graceful dancer glides across the stage.
2. 2. B — The relationship is "animal to its home." cow → barn, so fish → aquarium.
3. 3. D — Four of the five words are alike: they are made from grain. cheese does not fit that group.
4. 4. A — Four of the five figures share one property: all figures are the same shape. A is the one that does not belong (does not share the property).
5. 5. E — In the top row, the figure grows and the figure doubles. Applying the same change to the bottom figure gives E. The others each make a specific mistake: A copies the top row's result instead of transforming the bottom figure; B applies only one of the two changes; C applies a different rule than the top row shows; D right change, wrong figure shape.
6. 6. A — In the top row, a smaller copy appears inside and the figure's fill darkens one step. Applying the same change to the bottom figure gives A. The others each make a specific mistake: B applies a different rule than the top row shows; C the bottom figure with no rule applied; D right change, wrong figure shape; E applies only one of the two changes.
7. 7. C — Each step, one more shape appears each time. Continuing one more step gives C. The others: A the right step on the wrong shape; B the right figure with the wrong fill; D steps backward in the series; E repeats the last figure instead of stepping on.
8. 8. B — The pattern subtracts 3 each time. 27 − 3 = 24.
9. 9. A — In every group the third number is the sum of the first two (the second is 6 more than the first). Applying the same rule to the last group gives 18: A.
10. 10. D — Across each row the numbers are multiplied by 3, and down each column they change by 1. The empty space must fit both its row and its column, which gives 630: D.
11. 11. B — A curious toddler pulls every toy out of the box.
12. 12. C — The relationship is "member to its category." robin → bird, so copper → metal.
13. 13. A — Four of the five words are alike: they are birds. frog does not fit that group.
14. 14. C — Four of the five figures share one property: all figures are the same shape AND the same fill (only the size and the dot vary). C is the one that does not belong (solid black instead of the shared property).
15. 15. A — In the top row, the figure turns a quarter-turn clockwise and the figure doubles. Applying the same change to the bottom figure gives A. The others each make a specific mistake: B applies a different rule than the top row shows; C applies only one of the two changes; D copies the top row's result instead of transforming the bottom figure; E right change, wrong figure shape.
16. 16. D — In the top row, the figure shrinks and the figure doubles. Applying the same change to the bottom figure gives D. The others each make a specific mistake: A applies a different rule than the top row shows; B right change, wrong figure shape; C copies the top row's result instead of transforming the bottom figure; E applies only one of the two changes.
17. 17. C — Each step, the fill moves one step through the cycle (light to dark, then starting over). Continuing one more step gives C. The others: A repeats the last figure instead of stepping on; B steps backward in the series; D the right step on the wrong shape; E jumps two steps ahead.
18. 18. A — The pattern subtracts 5 each time. 26 − 5 = 21.
19. 19. A — In every group the second number is 5 more than the first, and the third is 3 times the second. Applying the same rule to the last group gives 1: A.
20. 20. D — Across each row the numbers change by 4, and down each column they change by 4. The empty space must fit both its row and its column, which gives 24: D.